145_Ray_Casting - optimice performance by using square distance

[strech345]

when using dist only for compare, its better to use the square distance. Because otherwise quare-root needs to be calculated which is much more cpu heavy.

Coding-Challenges/145_Ray_Casting/P5/particle.js

Line 29 in 2a9d681

const d = p5.Vector.dist(this.pos, pt);